Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru

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The aim of this study was to determine the frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru, as well as to evaluate their association with the variables age (≤1 and >1 year), sex and district of origin (Caraz, Pampas, Yungay). In addition, estab...

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Autores: Ninamancco C., Adhelí Del Carmen, Pinedo V., Rosa, Chávez V., Amanda
Formato: artículo
Fecha de Publicación:2021
Institución:Universidad Nacional Mayor de San Marcos
Repositorio:Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
Lenguaje:español
OAI Identifier:oai:ojs.csi.unmsm:article/20021
Enlace del recurso:https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20021
Nivel de acceso:acceso abierto
Materia:sheep
gastrointestinal nematodes
verminous gastroenteritis
Ancash
ovejas
nematodos gastrointestinales
gastroenteritis verminosa
Áncash
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spelling Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, PeruFrecuencia de nematodos gastrointestinales en ovinos de tres distritos de la Región Ancash, PerúNinamancco C., Adhelí Del CarmenPinedo V., RosaChávez V., Amandasheepgastrointestinal nematodesverminous gastroenteritisAncashovejasnematodos gastrointestinalesgastroenteritis verminosaÁncashThe aim of this study was to determine the frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru, as well as to evaluate their association with the variables age (≤1 and >1 year), sex and district of origin (Caraz, Pampas, Yungay). In addition, establish the average parasite load and identify the genera and species present. Faecal samples were collected from 540 sheep during August to September 2017. The animals had not been treated with anthelmintics in the last three months. Sheather's and Modified McMaster's flotation techniques were used for qualitative and quantitative faecal examinations, respectively; as well as the Corticelli and Lai Modified techniques and the Baermann technique for the culture and identification of nematode larvae, respectively. The frequency of nematode positive animals was 79.1%. The Chi square test did not show a significant association between the frequency of nematodes and the variables age, sex and origin. The geometric averages of the parasite load in sheep positive to Strongylus (HTS) and Nematodirus sp eggs were 190 and 29 eggs per gram of faeces, respectively, and considered as low loads. The most frequent nematodes were Trichostrongylus sp (80.4%), Haemonchus contortus (11.4%) and Oesophagostomum sp (8.2%).El objetivo del presente estudio fue determinar la frecuencia de nematodos gastrointestinales en ovinos de tres distritos de la Región Ancash, Perú, así como evaluar su asociación con las variables edad (≤1 y >1 año), sexo y distrito de procedencia (Caraz, Pampas, Yungay). Además, establecer el promedio de carga parasitaria e identificar los géneros y especies presentes. Se colectaron muestras de heces de 540 ovinos durante agosto a setiembre de 2017. Los animales no habían sido tratados con antihelmínticos en los últimos tres meses. Se emplearon las técnicas de flotación con solución de Sheather y McMaster Modificado para exámenes fecales cualitativos y cuantitativos, respectivamente; así como las técnicas de Corticelli y Lai Modificado y la Técnica de Baermann para el cultivo e identificación de larvas de nematodos, respectivamente. La frecuencia de animales positivos a nematodos fue de 79.1%. La prueba de Chi cuadrado no mostró asociación significativa entre la frecuencia de nemátodos y las variables edad, sexo y procedencia. Los promedios geométricos de la carga parasitaria en ovinos positivos a huevos tipo Strongylus (HTS) y Nematodirus sp fueron de 190 y 29 huevos por gramo de heces, respectivamente; considerándose cargas bajas. Los nematodos más frecuentes fueron Trichostrongylus sp (80.4%), Haemonchus contortus (11.4%) y Oesophagostomum sp (8.2%).Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria2021-04-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/2002110.15381/rivep.v32i2.20021Revista de Investigaciones Veterinarias del Perú; Vol 32 No 2 (2021); e20021Revista de Investigaciones Veterinarias del Perú; Vol. 32 Núm. 2 (2021); e200211682-34191609-9117reponame:Revista UNMSM - Revista de Investigaciones Veterinarias del Perúinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20021/16555Derechos de autor 2021 Adhelí Del Carmen Ninamancco C., Rosa Pinedo V., Amanda Chávez V.http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2021-06-01T18:11:11Zmail@mail.com -
dc.title.none.fl_str_mv Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
Frecuencia de nematodos gastrointestinales en ovinos de tres distritos de la Región Ancash, Perú
title Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
spellingShingle Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
Ninamancco C., Adhelí Del Carmen
sheep
gastrointestinal nematodes
verminous gastroenteritis
Ancash
ovejas
nematodos gastrointestinales
gastroenteritis verminosa
Áncash
title_short Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
title_full Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
title_fullStr Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
title_full_unstemmed Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
title_sort Frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru
dc.creator.none.fl_str_mv Ninamancco C., Adhelí Del Carmen
Pinedo V., Rosa
Chávez V., Amanda
author Ninamancco C., Adhelí Del Carmen
author_facet Ninamancco C., Adhelí Del Carmen
Pinedo V., Rosa
Chávez V., Amanda
author_role author
author2 Pinedo V., Rosa
Chávez V., Amanda
author2_role author
author
dc.subject.none.fl_str_mv sheep
gastrointestinal nematodes
verminous gastroenteritis
Ancash
ovejas
nematodos gastrointestinales
gastroenteritis verminosa
Áncash
topic sheep
gastrointestinal nematodes
verminous gastroenteritis
Ancash
ovejas
nematodos gastrointestinales
gastroenteritis verminosa
Áncash
dc.description.none.fl_txt_mv The aim of this study was to determine the frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru, as well as to evaluate their association with the variables age (≤1 and >1 year), sex and district of origin (Caraz, Pampas, Yungay). In addition, establish the average parasite load and identify the genera and species present. Faecal samples were collected from 540 sheep during August to September 2017. The animals had not been treated with anthelmintics in the last three months. Sheather's and Modified McMaster's flotation techniques were used for qualitative and quantitative faecal examinations, respectively; as well as the Corticelli and Lai Modified techniques and the Baermann technique for the culture and identification of nematode larvae, respectively. The frequency of nematode positive animals was 79.1%. The Chi square test did not show a significant association between the frequency of nematodes and the variables age, sex and origin. The geometric averages of the parasite load in sheep positive to Strongylus (HTS) and Nematodirus sp eggs were 190 and 29 eggs per gram of faeces, respectively, and considered as low loads. The most frequent nematodes were Trichostrongylus sp (80.4%), Haemonchus contortus (11.4%) and Oesophagostomum sp (8.2%).
El objetivo del presente estudio fue determinar la frecuencia de nematodos gastrointestinales en ovinos de tres distritos de la Región Ancash, Perú, así como evaluar su asociación con las variables edad (≤1 y >1 año), sexo y distrito de procedencia (Caraz, Pampas, Yungay). Además, establecer el promedio de carga parasitaria e identificar los géneros y especies presentes. Se colectaron muestras de heces de 540 ovinos durante agosto a setiembre de 2017. Los animales no habían sido tratados con antihelmínticos en los últimos tres meses. Se emplearon las técnicas de flotación con solución de Sheather y McMaster Modificado para exámenes fecales cualitativos y cuantitativos, respectivamente; así como las técnicas de Corticelli y Lai Modificado y la Técnica de Baermann para el cultivo e identificación de larvas de nematodos, respectivamente. La frecuencia de animales positivos a nematodos fue de 79.1%. La prueba de Chi cuadrado no mostró asociación significativa entre la frecuencia de nemátodos y las variables edad, sexo y procedencia. Los promedios geométricos de la carga parasitaria en ovinos positivos a huevos tipo Strongylus (HTS) y Nematodirus sp fueron de 190 y 29 huevos por gramo de heces, respectivamente; considerándose cargas bajas. Los nematodos más frecuentes fueron Trichostrongylus sp (80.4%), Haemonchus contortus (11.4%) y Oesophagostomum sp (8.2%).
description The aim of this study was to determine the frequency of gastrointestinal nematodes in sheep from three districts of the Ancash Region, Peru, as well as to evaluate their association with the variables age (≤1 and >1 year), sex and district of origin (Caraz, Pampas, Yungay). In addition, establish the average parasite load and identify the genera and species present. Faecal samples were collected from 540 sheep during August to September 2017. The animals had not been treated with anthelmintics in the last three months. Sheather's and Modified McMaster's flotation techniques were used for qualitative and quantitative faecal examinations, respectively; as well as the Corticelli and Lai Modified techniques and the Baermann technique for the culture and identification of nematode larvae, respectively. The frequency of nematode positive animals was 79.1%. The Chi square test did not show a significant association between the frequency of nematodes and the variables age, sex and origin. The geometric averages of the parasite load in sheep positive to Strongylus (HTS) and Nematodirus sp eggs were 190 and 29 eggs per gram of faeces, respectively, and considered as low loads. The most frequent nematodes were Trichostrongylus sp (80.4%), Haemonchus contortus (11.4%) and Oesophagostomum sp (8.2%).
publishDate 2021
dc.date.none.fl_str_mv 2021-04-23
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20021
10.15381/rivep.v32i2.20021
url https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20021
identifier_str_mv 10.15381/rivep.v32i2.20021
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/20021/16555
dc.rights.none.fl_str_mv Derechos de autor 2021 Adhelí Del Carmen Ninamancco C., Rosa Pinedo V., Amanda Chávez V.
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Derechos de autor 2021 Adhelí Del Carmen Ninamancco C., Rosa Pinedo V., Amanda Chávez V.
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
publisher.none.fl_str_mv Universidad Nacional Mayor de San Marcos, Facultad de Medicina Veterinaria
dc.source.none.fl_str_mv Revista de Investigaciones Veterinarias del Perú; Vol 32 No 2 (2021); e20021
Revista de Investigaciones Veterinarias del Perú; Vol. 32 Núm. 2 (2021); e20021
1682-3419
1609-9117
reponame:Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
instname:Universidad Nacional Mayor de San Marcos
instacron:UNMSM
reponame_str Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
collection Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
instname_str Universidad Nacional Mayor de San Marcos
instacron_str UNMSM
institution UNMSM
repository.name.fl_str_mv -
repository.mail.fl_str_mv mail@mail.com
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score 13.836569
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